The '''International Textbook Company''' ('''I.T.C.''') was founded in 1895 by publisher Thomas J. Foster in Scranton, Pennsylvania
[The World's Work By Walter Hines Page, Arthur Wilson Page pp. 319-320]
I.T.C. published instructional papers, booklets, and textbooks for the International Correspondence Schools
, a subsidiary department. The textbook company and the school were dependent on each other since their founding.
The International Correspondence School started in 1891 as a question-answer column in the pages of the mining journal ''Colliery Engineer and Metal Miner'', also published by Foster. This column was a response to the in-depth tests required of miners and inspectors by the Pennsylvania Mine Safety Act of 1885.
I.T.C. merged the Colliery Engineer School of Mines, School of Mines, Correspondence Schools, and the International Correspondence School as the International...